Research On The Application Of Cost Benefit Analysis To Environmental Infrastructure

Today, with the rapid development of urbanization, social economy got rapid development. At the same time, it also brings great pressure to the urban ecological environment, which leads to the deterioration of the urban environment. Urban environmental infrastructure is an important support for the protection and improvement of urban environmental quality, and is the material guarantee for the coordinated development of urban economy and society.For a long time, our country's environmental project evaluationusing financial cost benefit analysis,emphasizes the direct economic benefits, due to the social and public welfare of environmental protection project, the evaluation method must have big problems,seriously hindered the development of environmental protection investment and environmental protection industry in China, bring difficulties to the decision-making and evaluation of environmental protection infrastructure construction project."13th Five-Year" period is a key period for China to improve the quality of the environment, is also the important period of urbanization. As an important support for the protection and improvement of urban environmental quality, urban environmental infrastructure needs more scientific and efficient development. The feasibility of the project approval and evaluation not only consider the financial and economic benefits, but also consider the social and environmental benefits. This requirement determines that it is of great significance to study the application of environmental cost benefit analysis of environmental infrastructure projects.Combine theoretical research and case study,this paper reviews the development and application of cost-benefit analysis at home and abroad, and expounds the theoretical basis of cost-benefit analysis. Based on the analysis of the characteristics,present situation and existing problems of environmental protection infrastructure,this paper puts forward the framework of environmental cost benefit analysis in the evaluation of environmental protection infrastructure construction in china. Finally,on the basis of theoretical research, the paper selects the Gaochun municipal solid waste incineration power generation project as a case study. In this project,Comprehensive cost benefit ratio greater than 1 in the fifth year,it means that the investment effect of Gaochun waste incineration power generation project is significant. Through environmental cost benefit analysis,comprehensive cost benefit ratio is 2.77,verify the feasibility and applicability of environmental cost effect analysis to assessenvironmental protection infrastructure. It also can provide guidance and reference for the application of environmental cost benefit analysis in environmental protection investment projects, environmental planning and environmental policies.